Elevator-indicator.



T. S. MAXWELL.

ELEVATOR INDICATOR.

APPLICATION FILED JULY'll, 1913.

1,077, 11 6, Patented Nov. 4, 1913.

THOMAS s. MAXWELL, or CLEVELAND, 01110. smva'ron-mmcaroa.

Specification of Letters Patent.

Patented Nov. 4, 1913.

Application filed July 11, 1913. Serial No. 778,484.

To all whom it may concern:

Be it known that I, THoMAs S. MAXWELL, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Elevator-Indicators, of which the following is a specification.

This invention relates to indicators for elevators, and has for its object to provide a device by means of which the passengers on entering the elevator car may indicate to the conductor the floor at which they desire to get off.

The device comprises a series of slides corresponding to the floors of the building, which device will be located in the car, and the slides may be advanced by the passengers to give a visual indication to the elevator operator as to the floors desired.

Means are also provided for returning the slides to original position.

'In the accompanying drawing-Figure 1 is a front elevation of the indicator. Fig. 2 is an inside elevation, with the front removed, as seen from the front. Fig. 3 is a section on the line 3-3 of Fig. 1.

Referring specifically to the drawings, 6 indicates a casing or box, the sides of which have slots 63 for the plates 7 to slide in. These plates correspond in number to the numbers of the floors, which numbers are marked on opposite ends of the plates with corres onding numbers on both sides of right and end of said plates, so that the passenger in the elevator may see 'the numbers from the inside. The drawing shows a device for six floors. To indicate a desired floor, the slide corresponding thereto is pushed to the left in Fig. 1 to cause the left end thereof to project beyond the casing, thereby exhibiting the floor desired. The box Wlll be fastened in convenient position in the elevator car so that the passengers may operate the slides, in such position that they can be convenientl seen by the elevator conductor. The sli es so operated will indicate to him the floors at which he must stop, without the necessity for the passengers calling out the desired floors. To returnthe slides to original position when the elevator descends, a pull rod 13 is provided, working in suitable guides in the casing and. connected by chains 11, which pass over guide pulleys 12 to a sliding bar 8, L-sha'ped in section, and which extends from the top to the bottom of the casing. This bar is normally advanced by springs 9. The projecting flan e 8 of the bar engages pins 7 projecting rom the slides 7. The pull rod 13 is normally lifted by a spring 15. By pulling, down on the rod the plate 8 is sh fted to the right in Fig. 2, against the tens on of the springs 9, and by engagement wlth the pins 7 pulls back to original position any of the slides 7 which may have been advanced.

I claim:

1. An indicator comprising a casing, a plurality of slides provided with indicating marks at opposite ends and movable across the casing to advance either end beyond the casing, and means to return the slides after they are advanced in one direction.

2. An indicator comprising a casing, a plurality of slides mounted therein and provided at opposite ends with indicating marks, said slides being movable individually to advance one end thereof beyond the casing, and means to simultaneously retract all of the slides.

3. An indicator comprising a casing, slides movable across the same and'having indicating marks at opposite ends and also having projecting pins, a spring pressed bar engageable with the pin when the slides are advanced in one direction, and means to shift the bar to retract all of the slides so advanced.

In testimony whereof, I do affix my signature in presence of two witnesses.

THOMAS S. MAXWELL.

Witnesses:

Jonu A. BOMMHARDT, HARRY L. RICHEY. 

